Mo Diary vs Calday
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mo Diary
This app helps you record and organize your life's moments. Save important events, notes, and memories with the ability to add photos, filter, and search entries. A premium version offers advanced features like PDF export and password protection.
- Store and organize notes and memories
- Add images to entries
- Filter and search entries by date or text
- Auto-saving of content
- Password and biometric login
- iCloud data synchronization
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Mo Diary is your personal diary. LIST OF RECORDS. Store important events, notes, memories in one place. CONTROL. Delete entries or add them to "Favorites" with one touch (swipe). FILTERING BY DATE. By default, Mo Diary displays the records of the current month. If necessary, you can set the desired period and view the records included in it. FILTERING YOUR FAVORITE. Set a filter for entries that have been added to "Favorite". SEARCH. Mo Diary will find the necessary entries by text or title. AUTO SAVING. Create and edit records without losing content. PICTURE. Add an image or photo to your significant moments. Available to change, delete, view the added images. DATE OF RECORDING. In Mo Diary, you can set any recording date. DISPLAY SETTINGS. Choose a convenient interface option for your posts - it is possible to turn off the display of the title and / or image. WITHOUT ADVERTISING. The PREMIUM VERSION is available with a one-time purchase. Functionality of the premium version: REMOTE RECORDS. Access to deleted records for the last 30 days with the ability to restore the selected record / all records. PDF-FORMAT. Convert the selected record or all records to PDF format. PASSWORD LOGIN. Set the code to enter the application (in addition, by default, TouchID / FaceID login is available, if this option is activated on the device, it can be disabled). ICloud POSSIBILITIES. Data synchronization is possible if on the old and new devices: 1) Internet connection is provided 2) iCloud Drive option is active 3) iCloud option is active for Mo Diary app 4) iCloud has free storage 5) the same Apple ID is used 6) the "Sync with iCloud" option is activated in the application
Calday
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Calday — A Simple Journal for Everyday Life Calday is a clean and simple journal designed to fit naturally into your day. No clutter. No pressure. Just a quiet space to write. Capture what happened today, note a quick thought, or reflect on your day — in your own way, at your own pace. Whether you write daily or occasionally, Calday makes journaling feel easy to keep. Built for effortless journaling: 1. Write anytime — Capture thoughts for today or any day you missed 2. Natural timeline — Revisit your entries in a simple, date-based flow 3. Keep things simple — Organize entries with lightweight categories 4. Sync across devices — Continue writing wherever you are 5. Works offline — No connection needed, just write Calday isn’t about writing more. It’s about making journaling feel simple enough to stay with.
Screenshots
Verdict
The clearest difference is update cadence: Calday at every 4 days against Mo Diary's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Mo Diary sells 1 one-off in-app purchase and Calday sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Mo Diary ships an update every 7 months, Calday every 4 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Mo Diary | Calday |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 7 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15 |
| Further details — not scored | ||
| Size | 26 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Sergey Krivorotko | Hefei Xiguoke Technology Co., Ltd. |
In-app purchases
Mo Diary
- Premium version$2.99
Calday
- Month PRO$2.99
- Year PRO$19.99









